Home / 136,943.10-205,430.65-43,458.30

Finding the Fourth Proportional to 136,943.10, 205,430.65 and 43,458.30

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Solution

The fourth proportional to 136,943.10, 205,430.65 and 43,458.30 is: 65,192.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,943.10 : 205,430.65 = 43,458.30 : x
  2. Step 2: Convert to fraction form
    136,943.10/205,430.65 = 43,458.30/x
  3. Step 3: Cross multiply
    136,943.10x = 205,430.65 × 43,458.30
  4. Step 4: Simplify right side
    136,943.10x = 8,927,666,816.90
  5. Step 5: Solve for x
    x = 8,927,666,816.90/136,943.10
  6. Step 6: Final answer
    x = 65,192.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.